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[FIX] amount human parsing for hex with amount

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There were cases where the currency and integer were incorrectly matched. By separating out the regex for hex formatted Amount makes it easier to deal with these cases and fixes the issue.
This commit is contained in:
Geert Weening
2014-06-26 15:34:29 -07:00
parent 3baea7752f
commit b4497bcb08
2 changed files with 69 additions and 12 deletions
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40
src/js/ripple/amount.js
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@@ -598,30 +598,48 @@ Amount.prototype.invert = function() {
* The regular expression below matches above cases, broken down for better understanding:
*
* ^\s* // start with any amount of whitespace
* ([a-zA-Z]{3}|[0-9]{3}) // either 3 letter alphabetic currency-code or 3 digit numeric currency-code. See ISO 4217
* ([A-z]{3}|[0-9]{3}) // either 3 letter alphabetic currency-code or 3 digit numeric currency-code. See ISO 4217
* \s* // any amount of whitespace
* (-)? // optional dash
* (\d+) // 1 or more digits
* (?:\.(\d*))? // optional . character with any amount of digits
* \s* // any amount of whitespace
* ([a-f0-9]{40}|[a-z0-9]{3})? // optional 40 character hex string OR 3 letters
* ([A-z]{3}|[0-9]{3})? // either 3 letter alphabetic currency-code or 3 digit numeric currency-code. See ISO 4217
* \s* // any amount of whitespace
* $ // end of string
*
*/
Amount.human_RE = /^\s*([a-z]{3}|[0-9]{3})?\s*(-)?(\d+)(?:\.(\d*))?\s*([a-f0-9]{40}|[a-z0-9]{3})?\s*$/i;
Amount.human_RE_hex = /^\s*(-)?(\d+)(?:\.(\d*))?\s*([a-fA-F0-9]{40})\s*$/;
Amount.human_RE = /^\s*([A-z]{3}|[0-9]{3})?\s*(-)?(\d+)(?:\.(\d*))?\s*([A-z]{3}|[0-9]{3})?\s*$/;
Amount.prototype.parse_human = function(j, opts) {
opts = opts || {};
var m = String(j).match(Amount.human_RE);
var integer;
var fraction;
var currency;
var precision = null;
if (m) {
var currency = m[5] || m[1] || 'XRP';
var integer = m[5] && m[1] ? m[1] + '' + m[3] : (m[3] || '0');
var fraction = m[4] || '';
var precision = null;
// first check if it's a hex formatted currency
var matches = String(j).match(Amount.human_RE_hex);
if (matches && matches.length === 5 && matches[4]) {
integer = matches[2];
fraction = matches[3] || '';
currency = matches[4];
this._is_negative = Boolean(matches[1]);
}
if (integer === void(0) && currency === void(0)) {
var m = String(j).match(Amount.human_RE);
if (m) {
currency = m[5] || m[1] || 'XRP';
integer = m[5] && m[1] ? m[1] + '' + m[3] : (m[3] || '0');
fraction = m[4] || '';
this._is_negative = Boolean(m[2]);
}
}
if (integer) {
currency = currency.toUpperCase();
this._value = new BigInteger(integer);
@@ -648,8 +666,6 @@ Amount.prototype.parse_human = function(j, opts) {
this.canonicalize();
}
this._is_negative = !!m[2];
// Apply interest/demurrage
if (opts.reference_date && this._currency.has_interest()) {
var interest = this._currency.get_interest_at(opts.reference_date);
@@ -1155,7 +1171,7 @@ Amount.prototype.to_json = function() {
} else {
var amount_json = {
value : this.to_text(),
currency : this._currency.to_json()
currency : this._currency.has_interest() ? this._currency.to_hex() : this._currency.to_json()
};
if (this._issuer.is_valid()) {
amount_json.issuer = this._issuer.to_json();